﻿ Reverted Gear-Train

# Reverted Gear-Train

### Reverted Gear-Pairs Schematic of Reverted Gear-Train.

A 'Reverted Gear Train' has:

 • two Gear-Pairs
 • two shafts
 • the input and output shafts are co-axial

It is a Compound Gear with, two Gears-Pairs, and a special condition that makes the total number of teeth of the first gear-pair equals the number of teeth of the second-gear-pair, when the module is the same.

The image to the left shows a schematic of a Reverted Gear-Train. There is more than one gear-pair, two shafts, and the input and output shafts are co-axial.

Therefore, it agrees the definition of the Reverted Gear Train.

#### Reverted Gear Train – Stage 1 Start with a Gear-Pair with an External Mesh- see Option 1 Step 14.1 Here, the number-of-teeth are: T1=30 , T2=70 . The Gear Ratio is T1/T2 = 2.5 The total number-of-teeth is 100T.

#### Reverted Gear Train – Stage 2 a. Click a Point in the new Part
 b. Click a Point on the Base-Part (left side of Line in Base-Part

We use the Point to add a Pin-Joint at the left end of the Line in the Base-Part two times -

 • »one time for the input gear, and
 • one time for the output gear. 2 Click the Part that is the Driven Geared-Rocker in the first Gear-Pair
 3 Click the new Parts with the Blue-Part-Outline
 4 The Line between the two Parts
 5 The dimension of the Line.

This dimension is already a 'driven-dimension'. Edit the Gear-Pair 2

Edit the Number of Teeth:

Gear 1 = 20

Gear 2 = 80

Video

See Video to the left to see the gear reduction of the Gear-Pair.

The Gear Reduction is : 30*20 : 70*80 = 3: 28

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